...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Return the underlying character array directly.
char const* data() const;
Returns a pointer to the underlying array serving as storage.
The value returned is such that the range {data(), data() + size())
is always a valid range, even if the
container is empty. The value returned from this function is never equal
to nullptr
.
Constant.